The effect of shear history on urea containing gliadin solutions
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Ward Janssens
Abstract
Currently, a substantial amount of research is devoted to gluten bioplastics. A promising processing route towards composites and films uses solutions of reduced gliadin. The addition of sufficient urea allows the preparation of highly concentrated gliadin solutions without an anomalous rheology. This is investigated in this paper by thixotropy experiments on gliadin solutions. These solutions show a balance between structural build-up due to molecular interactions and structural break-down induced by shear flow. Because of this, such protein solutions should be prepared with great caution. To assure a rheology suitable for processing, a shear history and a sufficient amount of added urea to disrupt molecular interactions are crucial.
Acknowledgments
The authors wish to acknowledge the IWT (SBO-project GlutenHyb) for funding this research. Professor Jan Mewis is acknowledged for stimulating discussions.
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©2017 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Preparation and processing
- Cellulose modification and shaping – a review
- The effect of shear history on urea containing gliadin solutions
- Preparation and characterization of poly(ethylene 2,5-furandicarboxylate/nanocrystalline cellulose composites via solvent casting
- Material properties
- Mechanical properties of natural fibre polymer composites
- Structure and properties of poly(lactic acid)/poly(lactic acid)-α-cyclodextrin inclusion compound composites
- Fabrication of random and aligned-oriented cellulose acetate nanofibers containing betamethasone sodium phosphate: structural and cell biocompatibility evaluations
- Matrix impact on the mechanical, thermal and electrical properties of microfluidized nanofibrillated cellulose composites
- Engineering
- Bi-layered electrospun nanofibrous polyurethane-gelatin scaffold with targeted heparin release profiles for tissue engineering applications
- Fabrication of porous polymeric structures using a simple sonication technique for tissue engineering
Artikel in diesem Heft
- Frontmatter
- Preparation and processing
- Cellulose modification and shaping – a review
- The effect of shear history on urea containing gliadin solutions
- Preparation and characterization of poly(ethylene 2,5-furandicarboxylate/nanocrystalline cellulose composites via solvent casting
- Material properties
- Mechanical properties of natural fibre polymer composites
- Structure and properties of poly(lactic acid)/poly(lactic acid)-α-cyclodextrin inclusion compound composites
- Fabrication of random and aligned-oriented cellulose acetate nanofibers containing betamethasone sodium phosphate: structural and cell biocompatibility evaluations
- Matrix impact on the mechanical, thermal and electrical properties of microfluidized nanofibrillated cellulose composites
- Engineering
- Bi-layered electrospun nanofibrous polyurethane-gelatin scaffold with targeted heparin release profiles for tissue engineering applications
- Fabrication of porous polymeric structures using a simple sonication technique for tissue engineering
